.TH "QwtCompassWindArrow" 3 "Mon Jun 1 2020" "Version 6.1.5" "Qwt User's Guide" \" -*- nroff -*-
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.SH NAME
QwtCompassWindArrow \- An indicator for the wind direction\&.  

.SH SYNOPSIS
.br
.PP
.PP
\fC#include <qwt_dial_needle\&.h>\fP
.PP
Inherits \fBQwtDialNeedle\fP\&.
.SS "Public Types"

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.ti -1c
.RI "enum \fBStyle\fP { \fBStyle1\fP, \fBStyle2\fP }"
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.RI "Style of the arrow\&. "
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.SS "Public Member Functions"

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.RI "\fBQwtCompassWindArrow\fP (\fBStyle\fP, const QColor &light=Qt::white, const QColor &dark=Qt::gray)"
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.SS "Protected Member Functions"

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.RI "virtual void \fBdrawNeedle\fP (QPainter *, double length, QPalette::ColorGroup) const"
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.SH "Detailed Description"
.PP 
An indicator for the wind direction\&. 

\fBQwtCompassWindArrow\fP shows the direction where the wind comes from\&.
.PP
.IP "\(bu" 2
QPalette::Light
.br
 Used for Style1, or the light half of Style2
.IP "\(bu" 2
QPalette::Dark
.br
 Used for the dark half of Style2
.PP
.PP
\fBSee also\fP
.RS 4
\fBQwtDial\fP, \fBQwtCompass\fP 
.RE
.PP

.SH "Member Enumeration Documentation"
.PP 
.SS "enum \fBQwtCompassWindArrow::Style\fP"

.PP
Style of the arrow\&. 
.PP
\fBEnumerator\fP
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.TP
\fB\fIStyle1 \fP\fP
A needle pointing to the center\&. 
.TP
\fB\fIStyle2 \fP\fP
A needle pointing to the center\&. 
.SH "Constructor & Destructor Documentation"
.PP 
.SS "QwtCompassWindArrow::QwtCompassWindArrow (\fBStyle\fP style, const QColor & light = \fCQt::white\fP, const QColor & dark = \fCQt::gray\fP)"
Constructor
.PP
\fBParameters\fP
.RS 4
\fIstyle\fP Arrow style 
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\fIlight\fP Light color 
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\fIdark\fP Dark color 
.RE
.PP

.SH "Member Function Documentation"
.PP 
.SS "void QwtCompassWindArrow::drawNeedle (QPainter * painter, double length, QPalette::ColorGroup colorGroup) const\fC [protected]\fP, \fC [virtual]\fP"
Draw the needle
.PP
\fBParameters\fP
.RS 4
\fIpainter\fP Painter 
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\fIlength\fP Length of the needle 
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\fIcolorGroup\fP Color group, used for painting 
.RE
.PP

.PP
Implements \fBQwtDialNeedle\fP\&.

.SH "Author"
.PP 
Generated automatically by Doxygen for Qwt User's Guide from the source code\&.
